Identify the 'black-shirt king' refereeing the crucial match for the Vietnam national team.

The Hong Kong refereeing team, known for their strict officiating style, will oversee the friendly match between the Vietnam national team and Bangladesh at Hang Day Stadium on March 26.

The referees from Hong Kong will take charge of officiating thefriendly match between the Vietnam national team and Bangladesh within the framework of FIFA Days in March 2026. This is the latest decision from the organizers, aimed at ensuring objectivity and professionalism for the match taking place at Hang Day Stadium on March 26.

Accordingly, the appointed main referee is Cheung Wai Lung Mario (born 1995), who is highly rated in the Hong Kong Premier League. Assisting him are two assistants Chow Chun Kit (born 1981) and Lam Cheuk Hong (born 1992). The fourth official for the match is FIFA referee Hoang Ngoc Ha, representing Vietnam.

Notably, as this is only an international friendly match, VAR technology will not be applied. This means decisions on the field will entirely depend on the refereeing team, requiring high concentration and composure in sensitive situations.

Referee Mario is known for his rather strict officiating style. Statistics show he has officiated 9 domestic matches and issued 43 yellow cards, averaging nearly 4.8 cards per match. Additionally, this 'black-shirt king' has issued 1 direct red card, 1 second yellow card, and awarded 4 penalties, indicating a tendency for firm handling of fouls.

Regarding Bangladesh, this team arrived in Hanoi on the afternoon of March 21 and will have about 5 days of preparation before the match. This is considered an important rehearsal for them before facing Singapore in the final round of the 2027 Asian Cup qualifiers.

Meanwhile, the Vietnam national team views this match as a necessary warm-up before hosting Malaysia on March 31. Beyond mere friendly significance, the encounter with Bangladesh is also an opportunity for the coaching staff to assess the squad, test tactics, and refine the lineup towards the important goal in the 2027 Asian Cup qualifiers.